• Title, Summary, Keyword: 수익체감

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An Analysis of Technical Efficiency in Korean RCC/RSC (우리나라 RCC/RSC별 운영효율성 분석)

  • Jang Woon-Jae;Keum Jong-Soo
    • Proceedings of the Korean Institute of Navigation and Port Research Conference
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    • pp.191-196
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    • 2004
  • This paper is to measure and ealuates the technical efficiency, pure technical efficiency and scale efficiency with three inputs and two outputs with the use of DEA(data envelopment analysis) in Korean RCC(Rescue Co-ordination Center/RSC(Rescue Sub-Center). Several conclusion emerge. first the average efficiency of overall technical efficiency measure about $91.03\%$ and pure technical efficiency $96.80\%$ is much large then scale efficiency $93.83\%$. It means that inefficiency has much more to do whit the inefficient utilization of resources rather then the scale of production. second, DRS(decreasing return to scale) is Tongyeong and IRS(increasing return to scale) is Incheon, Taean, Gunsan, Yeosu, Ulsan, Donghae in RCC/RSC. finally, inefficiency RCC/RSC. have to benchmarking with reference sets.

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An Analysis of Technical Efficiency in the Korean RCC/RSC (RCC/RSC별 운영 효율성 분석)

  • Keum Jong-Soo;Jang Woon- Jae
    • Journal of Navigation and Port Research
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    • v.29 no.3
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    • pp.215-220
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    • 2005
  • This paper aim, to measure and evaluates the technical efficiency, pure technical efficiency and scale efficiency with two inputs and four outputs with the use of DEA(Data Envelopment Analysis) in Korean RCC(Rescue Co-ordination Center)/RSC(Rescue Sub-Center). Several conclusion emerge. first the average efficiency of overall technical efficiency measure about $91.03{\%}$ and pure technical efficiency $96.80{\%}$ is much large then scale efficiency $93.83{\%}$. It means that inefficiency has much more to do whit the inefficient utilization of resources rather then the scale of production. second, DRS(decreasing return to scale)is Tongyeong and IRS(increasing return to scale) is Incheon, Taean, Gunsan, Yeosu, Ulsan, Donghae in RCC/RSC finally, inefficiency RCC/RSC have to benchmarking with reference sets.

The Data Envelopment Analysis of Container Terminals to Transshipment Cargo (환적화물의 컨테이너 터미널 효율성 분석)

  • Park, Hong-Gyun
    • Journal of Korea Port Economic Association
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    • v.26 no.1
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    • pp.1-19
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    • 2010
  • This paper focuses measuring the efficiency of container yards on container terminals in Busan (Gasungdae, Shinsundae, Gamman, New Gamman, Uam, Gamchon, PNC) and Gwangyang(GICT, KEC, Dongbu, KIT) using Data Envelopment Analysis(DEA) approach. Container terminals in Busan and Gwangyang play an important role in the region's economic development. The results show that Shinsundae was an efficient DMU during the period of 2007 to 2009, while Gamman, New Gamman and PNC were efficient terminals in 2009. The very inefficient terminals were shown to be GICT, KEC, Dongbu and KIT. GICT(2009), KEC(2009), Dongbu(2008-2009), KIT(2009) on Gwangyang Port were found to be relatively the inefficient terminals in terms of the returns to scale. This study also finds that the efficiency of Shinsundae terminal was so high as to be abel to keep its efficiency in spite of the additional increase of the inputs from 2007 to 2009. Gamman terminal was in the decreasing returns to scale in 2009, while the other terminals were in the increasing returns to scale. It means that we are able to improve the efficiency of the Gamman terminal with increasing returns to scale through enlarging the scale.

Strategies for Improving Patent Activity by Analyzing Patent Activity of Industry : Small and Medium Sized Enterprises by Korea Industry (특허 활동성 분석을 통한 산업별 특허 활동성 제고 전략 : 국내 중소중견기업을 대상으로)

  • Kim, Dooho;Kim, Wanki
    • Journal of Technology Innovation
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    • v.27 no.2
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    • pp.73-98
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    • 2019
  • This study aims to contribute to the improvement of the patent activity of small and medium-sized enterprises in the future by proposing five strategies for enhancing customized patent activity for small and medium-sized enterprises under the assumption that patent application affects firm performance. The subjects of this study were 25 years of active patent activity, using patent activity statistics for 5 years from 2010 and statistical data of business performance based on 2014. The research procedure was conducted in the order of DEA-BCC efficiency analysis, patent activity analysis, and patent portfolio analysis, and then propose a strategy to improve patent activity. As a result of the research, it was confirmed that 5 industries with high patent activity and IRS type have a substantial effect on improving corporate performance as an industry with high patent efficiency. On the other hand, there are 12 industries in the form of IRS/DRS, and 8 industries with low patent activity, DRS, CRS/IRS mixed type and IRS, and that the efficiency of the patent may vary depending on the characteristics of each industry.

집권정당별 주가수익률과 경기변동 통계분석 중 충격반응 분석

  • Kim, Jong-Gwon
    • Proceedings of the Safety Management and Science Conference
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    • pp.493-497
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    • 2012
  • 개인투자자들은 자신이 지지한 정당이 집권을 하였을 경우 경제상황이 좋아질 것이라는 기대감(expectation)을 갖게 된다. 이에 따라 개인투자자들은 지지한 정당이 집권하였을 때, 경제의 불확실성(uncertainty)이 줄어들고 주가도 상승할 것이라고 믿는 경향이 있다. 이러한 개인투자자들은 실제로 주식투자 규모를 늘려가는 상황을 만들며, 소형주(small cap)를 비롯하여 가치주(value stocks), 경기민감주 등에 대한 투자규모를 늘리는 경우가 흔히 발생하고 있다. 이와 같은 새로운 정부에 대한 기대감이 반영되면서 새로운 정부의 집권 초기에 이들 개인투자자들은 주식보유기간을 보다 길게 가져가려는 경향도 보인다. 반면에 개인투자자들의 경우 자신이 지지하지 않는 집권정부가 들어섰을 때 경제의 불확실성(uncertainty)이 증가한다고 판단하여 보유주식을 처분하려는 경향이 증대되고 있다. 한국의 경우 개인투자자들의 투표성향이 체감 소득수준 및 집권정부별 경제정책에 따라 영향을 받을 수 있는 것으로 나타나 주가수익률 등의 움직임에 주목할 필요가 있다고 판단된다.

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Characteristics and Economic Effects of Korean Firms' R&D Investment (우리나라 민간기업 연구개발투자의 특성 및 경제적 효과)

  • Suh, Joonghae
    • KDI Journal of Economic Policy
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    • v.27 no.1
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    • pp.81-122
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    • 2005
  • The paper aims to establish the characteristics of the Korean firms' R&D investment and to estimate the private rate of return to R&D investment. For the empirical analysis, a balanced panel data is constructed with 695 firms on 8 year observations. The panel data enables to characterize R&D investment of the Korean firms, which is mostly conformed to the 'stylized facts' of R&D investment that found in the previous studies on foreign firms. Klette model was used to estimate the private rate of return on R&D investment and depreciation rate of R&D capital. The paper estimates that the rate of return on R&D investment is 10.5% on average or 16.4% on median for the whole industry whereas manufacturing firms show 10.4% on average or 16.4% on median. The depreciation rate was estimated about 32.9% for whole industry, where it ranges from the minimum 11.6% for metal industry and 49.5% for services. The median estimate of the rate of return for R&D investment of Korean firms is roughly two times higher than real interest rates for the same period, which implies that R&D investment allows sizable rent in addition to the opportunity cost of capital investment.

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Impacts of Internet-Based e-business Systems on Business and Financial Performances (인터넷 기반의 이비즈니스 시스템이 사업성과 및 재정적 성과에 미치는 영향)

  • Song In-Kuk
    • Journal of Internet Computing and Services
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    • v.7 no.1
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    • pp.111-120
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    • 2006
  • In spite of proliferating E-business success stories, many executives urge that they have not realized the return expected from investments in Internet-based E-business systems, Most of businesses tend to focus on immediate financial payoffs and overlook the improvements in information capabilities and business performance, The purpose of the research is to investigate the effects of Internet-based E-business systems on organizations' information capabilities, business performance, and financial performance, and to illustrate the roles and values of the systems in achieving business goals. Findings illustrate that when an organization's information capabilities are enhanced by Internet-based E-business systems, business performance tends to improve. In addition, the study implies that the business performance improvement may create consumer benefits, which would be indispensable factors to make a profit.

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Guaranteed Reserve Projections for the Guaranteed Interest Contract of Collective DC Funds (통합운영 DC의 이율보증 준비금 추정에 관한 연구)

  • Sung, Joo-Ho;Seo, Dong-Won;Lee, Dong-Hwa
    • Journal of the Korea Society for Simulation
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    • v.28 no.3
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    • pp.57-63
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    • 2019
  • This study suggests the level of guaranteed reserves that should be accumulated in order to provide guaranteed interest contracts to pension members. To calculate the guaranteed reserve, this study employs the method using variable insurance contracts with guaranteed interest options. The average return of three major pensions (national pension, private teacher's pension, civil servants pension) funds, from 2010 to 2018, is set as the target rate of return and then we establish 0%, 1.0%, 1.5% and 2.0% each as our minimum guaranteed returns for their respective guaranteed reserves. Our results firstly show that gaps between each guaranteed reserves are increasing as times goes on. Second, the probability of shortfall reserve is on the decrease as the pension fund is mature. Conclusively, a long-term conservative balance between risk and return is one of the best investing strategies in pension funds providing the guaranteed interest.

An Analysis of Technical Efficiency of Port Labor Using DEA/Super Efficiency (DEA/초효율법을 이용한 항만노무 효율성 분석)

  • Jang, Woon-Jae
    • Journal of the Korean Society of Marine Environment & Safety
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    • v.23 no.2
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    • pp.161-167
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    • 2017
  • This paper measured and evaluated the technical efficiency, pure technical efficiency and scale efficiency of port labor via three inputs and three outputs using Data Envelopment Analysis (DEA). First, the average overall technical efficiency measured about 94.18 %, with 100 % pure technical efficiency being larger than 94.18% scale efficiency. As a result, 7 ports were identified as efficient, and 4 ports were identified as inefficient. Among the 4 ineffiecient ports, Donghae had the highest Increasing Return to Scale (IRS). However, the inefficient ports were all found to be less efficient in terms of resource operation than production scale. On the other hand, the efficient ports established priorities using the super efficiency method. As a result, port efficiency was highest for Incheon, Mokpo, Pyeongtaek-Dangjin, Masan, Yeosu Gwangyang, Jeju, and Gunsan-Daesan Ports, in order. In particular, Busan Port, found to be inefficient, would benefit from using Mokpo Port and Incheon Port as benchmarks to increase trade volume and modernize equipment for full-scale commercialization to improve labor efficiency.

An Empirical Study on Price and Volatility Spillover between Korea Stock Market and Chinese Stock Market (중국 주식시장의 시가갭이 한국주식시장의 장중 수익률과 변동성에 미치는 영향에 관한 연구)

  • Park, Joung-Hae;Seo, Sang Gu
    • Management & Information Systems Review
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    • v.31 no.3
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    • pp.307-321
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    • 2012
  • This paper examines the spillover effect between Korea stock market and Chinese stock market according to increasing economic power of Chinese. Chinese stock market start the transaction one hour and half early than Korea stock market. Especially we focuses the response of Korea stock market after Chinese stock market starts. So we analyze the return an volatility of Korea stock market after 10:30. We employee daily and intraday stock return and volatility. The sample period ranges from January 2008 to April 2010 total 28 months. Our results show that the gap of open price between Korea and Chinese stock market affect the five minute return and volatility of Korea stock market but don't affect the ten minute return and volatility. Recently, this spillover effect has increased more and more. This shows the rapid increase of economic power of Chinese to affect the Korea capital market.

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